Manufacture of celluloid vessels



A. POUCHAIN.

MANUFACTURE OF CELLULOID VESSELS. APPLICATION FILED AUG. 18, 1920.

1,427,972.- 1 I PatentedSepfi5,192"L.

Q J na Z61 55' Ca, M

Patented Sept. 5, 1922. 7 i

UNITED states rarsnr caries.

ADOLFO roiioHAIN;

or Q'IURIN', ITALY.

MANUFACTURE or CELLULOID v EssELs. I

Application filed August 18, 1920. Serial No. 404,445.

To allwhomit mayconcem:

Be it known that I, ADoLFo PoUoiiAiN, a subject of the King of Italy,and resident of Turin, Italy, have invented certain new and usefulImprovements in the Manufacture of Celluloid Vessels, of which thefollowing is a specification. I

This invention relates to the manufacture of vessels of celluloidreinforced with in-' ternal layers of fabric by superimposing on asuitable mould successive layers of fabric impregnated with a solutionof celluloid, to which may be added inert substances incapable of attackby dilute sulphuric acid, such as sawdust, talc or asbestos.

In the accompanying drawing is shown a mode of making an electricaccumulatorf cell in accordance with this invention.

In said drawing Figure 1 is a perspective view of the cell in the courseof manufacture; Figure 2 is a like view of the finished.

cell.

The core 1 is generally of wood and of several pieces to facilitate itsextraction from the finished cell. On this core, covered for examplewith paper to avoid adhesion, there are wrapped successive layers offabric 2, such as cloth, which are impregnated with a solution ofcelluloid, if necessary w th ad dition of inert materials, until athickness corresponding with that required for the bottom and sides ofthe cell has been attained.

Said solution of celluloid is obtained by dissolving celluloid inacetone, in the well non-inflammable varnish.

dered uninflammable if it'be treated with a The finished cell is shownin Figure 2,

- from which it will be seen that owing to the rigid frame 3 the mouthof the cell is not liable to betdeformed during the'solidification ofthe celluloid.

The vessel may be made in this manner of any form and size desired, andis particularly suitable as a cell for electric accumulators becausecelluloid is not attacked by tle electrolyte and is also light andunbreaka e. a

What I claim as my invention and desire to secure by United StatesLetters Patent is 1. A method of manufacturing vessels of I celluloidcomprising wrapping on a core successive layers of fabric impregnatedwith a solution of celluloid, inserting arigid name on said wrappedlayers, permitting said celluloid to dry and removing said core.

'2. method of manufacturing vessels of celluloid comprising wrapping ona core successive layers of fabric impregnated with a solution ofcelluloid, insertinga rigid frame on said wrapped layers at the mouth ofthe vessel, permitting said celluloid to g dry and removing'said cor-e.

3. A method of manufacturing vessels of celluloid comprising wrappingona core successive layers of fabric impregnated with a solution ofcelluloid, inserting a rigid frame on said wrapped layers at the mouthof the vessel and over-turning the edges of said layers on said frame,permittingsaid celluloid to dry and removing said core.

4:. As a new article of manufacture, a vessel comprising fabricimpregnated with celluloid and having a rigid frame at its mouth.

5. As a new article of manufacture a vessel comprising fabricimpregnated with celluloid and having a rigid frame incorporated at itsmouth.

Signed atT irin, Italy,-this 29th day of July, 1920. ADOLFO POUOHAIN.

